[AtlUmpSteve]

ASA 10-1.G "No umpire has the authority to set aside or question decisions made by another umpire within the limits of the respective duties as outlined in these rules."

ASA 10-1.H "An umpire may consult the other umpire(s) at any time; however, the final decision will rest with the umpire whose exclusive authority it is to make the decision and who requests the opinion of the other umpire(s)".

ASA Umpire Manual "When one umpire requests an opinion from another concerning a given play, the opinion should be given honestly and courteously to the umpire requesting it. Never offer an opinion, though, unless asked. Unsolicited advice is never appreciated and will cultivate a lack of confidence in the umpire(s)."

NFHS 10-1-4 (in part) "The umpire making the decision may ask another umpire for information before making a final decision."

NFHS Umpire Manual "When one umpire requests an opinion from another concerning a given play which has been ruled upon, the opinion should be given honestly and courteously to the umpire requesting it. and to him/her only. Never offer an opinion, though, unless asked. Unsolicited advice is never appreciated and will cultivate a lack of confidence in the umpire(s)."

NCAA 15-2.h "An umpire should consult his or her associate(s) upon the request of a head coach; however, the final decision will rest with the umpire whose exclusive authority is to make the final decision and who requests the opinion of the other umpires."

NCAA Umpire Manual "The umpire whose call it was must be the one to seek help from a partner. .... Only in the situations listed below, a partner who is 100% certain he/she has additional information unknown to the umpire making the call, should approach unsolicited and alert the umpire to such information. This is an extremely rare circumstance, and the ultimate decision to change a call still rests with the calling umpire.
1) Deciding if a home run is fair or foul.
2) Deciding whether a batted ball left the playing field for a home run or ground-rule double.
3) Cases where a foul tip is caught or trapped by the catcher.
4) Cases where a foul fly ball is caught or not caught.
5) Cases when an umpire clearly errs in judgment because they did not see a dropped or juggled ball after making a tag or force.
6) Spectator interference plays."

There is no rule against sharing information you may have? In the context of this post, there certainly is.